Reiner s malzkaffee



UNITED STATES PATENT OFFICE. 1

HEINRICH TRILLICH, MUNICH, GERMANY, ASSIGNOR TO THE KATH- I REINERS MALZKAFFEE FABRIKEN MIT BESOHRAENKTER HAFTUNG,

0F SAME PLACE.

ART OF PREPARING SUBSTI TU T ES FOR COFFEE.

srnor'nren'rrolv forming part of Letters Patent No. 513,252, dated January 23,1894. Application filed December 22, 1893. Serial No.494,4=89. (lilo specimens.) Patented in England November 1, 1891,'No. 14,755

in Germany March 8, 1892,1l'o. 66,300 in Belgium April 28, 1892, lie-99,372; in France April 30, 1892, No. 221,293; in

' Norway June 3, 1892,1l'o. 2,821; in Sweden June 4, 1892,1lo.4,272, and in Spain July 14, 1892,1108. 13,375 and 2,582-

To all whom it may concern:

Be' it known that I, HEINRICH TRILLICH, a subject of the German Emperor, residing at Munich, Bavaria, in the German Empire, have invented certain new and useful Improvements in the Art of Preparing Substitutes for Coffee, (for which I have obtained patents in Germany,.No. 65,300, dated March 8, 1892; in France, No. 221,293, dated April 30, 1892; in Belgium, No. 99,372, dated April 28, 1892; in England, No. 14,755, dated November 1, 1891; in Spain, Nos. 13,375 and 2,582, dated July 14, 1892; in Sweden, No. 4,272, dated June 4, 1892, and in Norway, No. 2,821., dated June 3, 1892;) and-I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art ,to which it appertains to make and use the same.

This invention relates to the utilization'of the partsof the coffee-plant, including the It is one of theobjects of my invention to utilize the waste-materials arising in the gathering and preparing of the coflfee-bean, for the usual purposes. In these industries, a number of waste-products are thrown 0E which heretofore were useless and were generally thrown aside. Among these waste-products are the pulp or pericar'p of the fruit, in which the coffee-beans are incased, and also the leaves, the bark, and other parts of the cofieeplant, all of which contain the principles for which the consumption of coffee isresorted to, these principles existing either in a developed or an undeveloped condition, in which latter case they are developed in the manner hereinafter to be set forth.

It is a further object of my invention to impregnate suitable solid bases,such as grain malted or not malted, with the above-mentioned principles'from the coftee-plant,in such 7 a way that a wholesome and nourishing beverage may be prepared therefrom, which, at

the same time, partakes of the cheering, stimulating and restorative properties of coffee. It should be observed, moreover, that I may also impregnate the coEee-beans themselves with these principles from the cofiee-plant, thus enhancing their strength and improving their quality in many cases. By far the most important object of the present invention, however, is to impregnate suitable solid bases, such as grain, malted or not malted, with the aromatic substances or volatile oils of the coffee-bean, usually known as cadeone, without subjecting the latter to a two-fold roasting process, which, as numerous experiments have shown, results in a. partial or even a cornplete destruction of "such volatile oils, according to the point to which the sec- 0nd roasting process has been carried. In the processes heretofore carried out for 1m- 4 pregnatin g the solid base, such as gram, &c., with the caifeone, the said grain, &c., has been impregnated either with a deeoction of roasted 7o coffee, and then roasted, or with the condensed vapors arising when cofiee is roasted, and containing the volatile oils, and thereupon roasted. Under both methods, it will be seen, the said volatile oils are subjected to a double roasting-process, the last roasting resulting in a destructive efiect upon the cafieone.

It has'been myobject to avoid one of these roasting steps and-the consequent destruct ve this object by the discovery which I have made, with regard to the properties of an ex tract made from the raw products or parts of the coffee-plant, and which is, that when a solid base, such as grain of any kind, malted 5 or not malted, is impregnated with such extract and then roasted, the volatileoils of the coffee-bean, known as cafieone, are developed.

Based on this discovery, among other 9 things, my invention consists in the matter hereinafter to be described and pointed out in the claims. Itake raw coffee-beans or the Y raw waste-products, arising in the gatheringof the cofiee-bean, such as the shells or peri- 5 carp of the coffee-berry, the leaves, twigs, or

efiects, and I have been enabled to carry out by soaking them in-hot water.

grain of any kind, malted or not malted, with such raw extract and then roast the base so impregnated, in a well-known manner. By this roasting, the grain or other base is not only brought into a suitable condition for use, but, most important of all, the.volatile aromatic oils, known as caffeone, are developed in the grain or other base, in addition to the cafiein which always exists in the extract before the roasting process.

It will be seen that, by my invention, I am not only enabled to obtain the caifeone from a ,source independent of the coifee-bean, namely, from what were formerly waste-pro: ducts, but'snch cafieone is not subjected to a double, and, hence, inj nrious roasting process, as heretofore.

vThe advantages and economy, and beneficial results, arising from this invention, are obvious.-

Other methods for obtaining the extract from the raw parts of the coffee-plant may be employed, and the relative amounts of cafifein and caffeone, contained in such extracts, depend on the particular method chosen. In all of them, the principle of the invention is the same, however, viz: the development of the caffeone from the extract by roasting.

The raw coffee-bean might be employed for the same purpose, but this would result in no economy over the usual method of developing the caflfeone therein by roasting the bean directly. The grain, &c.,treated in the above manner, may be coated, topreserve the same againstdeterioration in any of the usual and known ways.

The above manner of treating the cereal base impregnated with the extract from ,the coffee-plant with the cafieone or aromatic oils of coffee,-viz: by roasting the same and thereby developing said caiIeone,I consider the preferable manner ofcarrying out my invention, and the most important feature thereof; but, in some cases, such treatment may comprise a further addition of the aromatic oils obtained in other ways, by intermittently spraying the impregnated base, after the first part of the roasting step, with a solution containing the aromatic oils from cofiee, during the roasting process, in the manner set forth in my Patent N 0. 488,801, dated December 27, 1892. The apparatus set forth in that patout, or any other suitable apparatus may be employed for that purpose. The solution containing the aromatic principle or caffeone may preferably be in the form of a sugar sirup or caramel solution, the spraying being carried out by passing a jet of steam or air through the solution to carry with it the said are obtained from coffee in the process of roasting, by conducting the vapors arising during the roasting process into a suitable condenser, where the condensed or liquefied vapors containing the aromatic oils or caffeone are collected. These condensed vapors react somewhat acid, and are, therefore, neutralized with an alkaline substance, such as carbonate of magnesium or calcx um, and then redistilled and the purified aromatlc 0118 so obtained may be employed in the aforesaid spraying operation.

When employing a saccharine solution containing the aromatic oils of caffeone, the grains of the cereal or malt, or other substance serving as a base, are each covered with a saccharine coating which serves to retain the aromatic oils or caffeone and other principles of the coffee-plant with which the base has been impregnated and to prevent their escape until the beverage is prepared. Although the last mentioned step of additignally treating the cereal or other base with the caifeone from a source outside of the extract from the raw products of the coifeeplant may be desirable in some cases, it '18 not absolutely necessary and the supply of this principle derived directly from the extract by roasting the base impregnated wlth said extract is ordinarily sufficient, and 1t 1s this method of obtaining the caffeone which I consider the. most important part of my 1nvention.

Whatl claim, and desire to secure by Letters Patent, is- A 1-. The process which conslsts in preparing an extract from the raw waste, products of the cofliee-plant, then impregnating a cereal base with such extractand finally treating the same with the aromatic oils of cofiee or caifeone, substantially asset forth.

' 2. The process which conslsts 1n lmpregnating a solid-base with an extract from the, raw products of the coffee plant and then roasting the base so impregnated, whereby the volatile oils of coffee are developed in such base, substantially as set forth.

3. The process which consists in maklng an extract from the raw wasteproductsof the coffee plant, impregnating a solid base with the same and then roasting the base so impregnated, substantially as set forth. I

4. The process which consists in making an extract from the raw waste products of the coffee plant, impregnating grain with the extract so produced and then roasting thegram so impregnated, whereby the volatile 011s of the coffee are developed in such base, substantially as set forth. 7

5. The process which consists in impregnating grain with an extract containing caffein, then roasting the same, and then continuing the roasting and intermittently spraying the same with (a solution containing the solution containing the aromatic oils of cofaromatic oils of cofiee, substantially as set fee, substantially as set forth. IO forth. In testimony whereof I aflix my signature in 6. The process whickconsists in impregpresence of two witnesses. hating malt with an extract from the waste HEINRICH TRILLICH. products of the coffee plant, thenroasting the Witnesses: same, and then continuing the roasting while ALBERT WEICKMAN,

intermittently spraying the same with a sugar CARL MAYER. 

